1010902001 has 4 divisors (see below), whose sum is σ = 1011014004. Its totient is φ = 1010790000.

The previous prime is 1010901977. The next prime is 1010902099. The reversal of 1010902001 is 1002090101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 518017600 + 492884401 = 22760^2 + 22201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010902001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010902301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41150 + ... + 60951.

It is an arithmetic number, because the mean of its divisors is an integer number (252753501).

Almost surely, 2^1010902001 is an apocalyptic number.

It is an amenable number.

1010902001 is a deficient number, since it is larger than the sum of its proper divisors (112003).

1010902001 is an equidigital number, since it uses as much as digits as its factorization.

1010902001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112002.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1010902001 is about 31794.6851061620. The cubic root of 1010902001 is about 1003.6208737823.

Adding to 1010902001 its reverse (1002090101), we get a palindrome (2012992102).

The spelling of 1010902001 in words is "one billion, ten million, nine hundred two thousand, one".